Method for making reduced iron
US6918947B2 · kind B2 · utility
3Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Jun 1, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for making reduced iron using blast-furnace sludge is provided. The method includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing powder to prepare a mixed material, an agglomerating step of agglomerating the mixed material to form agglomerates, a feeding step of feeding the agglomerates onto a continuously moving hearth, and a reducing step of heating the agglomerates to remove zinc and reduce the agglomerates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.